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Fair Value of Financial Instruments (Tables)
6 Months Ended
Jun. 30, 2013
Fair Value of Financial Instruments [Abstract]  
Fair Value
The fair value and carrying value of our investments, long-term debt, after deducting current maturities, and our interest rate swaps are as follows at June 30, 2013 and December 31, 2012:

(Dollars in thousands)  
June 30, 2013
 
December 31, 2012
 
 
Input Level
 
Carrying Amount
 
Fair Value
 
Carrying Amount
 
Fair Value
 
Investments
2  
$
3,408
  
$
3,408
  
$
3,213
  
$
3,213
 
Long-term debt
2
  
$
134,324
  
$
134,324
  
$
135,133
  
$
135,133
 
Interest rate swaps
2  
$
1,838
  
$
1,838
  
$
2,432
  
$
2,432